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			<h1>common_schema</h1> <strong>2.2</strong> documentation
			<div class="subtitle">DBA's framework for MySQL</div>
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				<h2><a href="processlist_repl.html">processlist_repl</a></h2>	
<h3>NAME</h3>
processlist_repl: Listing of replication processes: the server's slave threads and any replicating slaves 
<h3>TYPE</h3>
View

<h3>DESCRIPTION</h3>
<p></p>

<p><i>processlist_repl</i> displays only replication processes. These may include:
<ul>
	<li>Connected slaves: when this server acts as a master, each slave connects using a single process. 
	A slave with running IO thread will appear in this server's processlist_repl</li>
	<li>IO thread: if this server is itself a replicating slave</li>
	<li>SQL thread: if this server is itself a replicating slave</li>
</ul>
</p>

<p>
	This view provides with a quick look at replication status processlist-wise.
</p>

<h3>STRUCTURE</h3>

<blockquote><pre>
mysql&gt; DESC common_schema.processlist_repl;
+---------------+-------------+------+-----+---------+-------+
| Field         | Type        | Null | Key | Default | Extra |
+---------------+-------------+------+-----+---------+-------+
| ID            | bigint(4)   | NO   |     | 0       |       |
| USER          | varchar(16) | NO   |     |         |       |
| HOST          | varchar(64) | NO   |     |         |       |
| DB            | varchar(64) | YES  |     | NULL    |       |
| COMMAND       | varchar(16) | NO   |     |         |       |
| TIME          | int(7)      | NO   |     | 0       |       |
| STATE         | varchar(64) | YES  |     | NULL    |       |
| INFO          | longtext    | YES  |     | NULL    |       |
| is_system     | int(1)      | NO   |     | 0       |       |
| is_io_thread  | int(1)      | NO   |     | 0       |       |
| is_sql_thread | int(1)      | NO   |     | 0       |       |
| is_slave      | int(1)      | NO   |     | 0       |       |
+---------------+-------------+------+-----+---------+-------+
</pre></blockquote>

<h3>SYNOPSIS</h3>

<p>Structure of this view derives from <a href="http://dev.mysql.com/doc/refman/5.1/en/processlist-table.html">INFORMATION_SCHEMA.PROCESSLIST</a> table</p>
<p>Additional columns are:
	<ul>
		<li><strong>is_system</strong>: <strong>1</strong> if this is the system user (SQL or IO slave threads); <strong>0</strong> otherwise.</li>
		<li><strong>is_io_thread</strong>: <strong>1</strong> if this is the slave IO thread, <strong>0</strong> otherwise.</li>
		<li><strong>is_sql_thread</strong>: <strong>1</strong> if this is the slave SQL thread, <strong>0</strong> otherwise.</li>
		<li><strong>is_slave</strong>: <strong>1</strong> if this is a replicating slave connection; <strong>0</strong> otherwise.</li>
	</ul>
<strong>is_system</strong> and <strong>is_slave</strong> are mutually exclusive. 
In this view every process is either <strong>is_system</strong> or <strong>is_slave</strong>.
<br/>
An <strong>is_system</strong> process is either a slave IO thread or SQL thread, as denoted by
<strong>is_io_thread</strong> and <strong>is_sql_thread</strong>, respectively. 
</p>

<p>On Percona Server, this additional info is included:
	<ul>
		<li><strong>TIME_MS</strong>: execution time in milliseconds</li>
	</ul>
</p>
<h3>EXAMPLES</h3>
<p>Show all replication processes</p>
<blockquote><pre>mysql&gt; SELECT * FROM common_schema.processlist_repl;
+--------+-------------+-------------+------+-------------+-------+------------------------------------------------------------------+------+----------+-----------+--------------+---------------+----------+
| ID     | USER        | HOST        | DB   | COMMAND     | TIME  | STATE                                                            | INFO | TIME_MS  | is_system | is_io_thread | is_sql_thread | is_slave |
+--------+-------------+-------------+------+-------------+-------+------------------------------------------------------------------+------+----------+-----------+--------------+---------------+----------+
| 805225 | system user |             | NULL | Connect     |     0 | Has read all relay log; waiting for the slave I/O thread to upda | NULL |        0 |         1 |            0 |             1 |        0 |
| 805224 | system user |             | NULL | Connect     |     5 | Waiting for master to send event                                 | NULL |     4327 |         1 |            1 |             0 |        0 |
| 425707 | repl_user   | sql02:46645 | NULL | Binlog Dump | 38273 | Has sent all binlog to slave; waiting for binlog to be updated   | NULL | 38272802 |         0 |            0 |             0 |        1 |
|     88 | repl_user   | sql00:46485 | NULL | Binlog Dump | 79071 | Has sent all binlog to slave; waiting for binlog to be updated   | NULL | 79070732 |         0 |            0 |             0 |        1 |
+--------+-------------+-------------+------+-------------+-------+------------------------------------------------------------------+------+----------+-----------+--------------+---------------+----------+
</pre></blockquote>
<p>In the above example we see two slaves replicating from this server (sql02 & sql00), 
and the two threads (IO thread, SQL thread) this server uses to replication from its master</p>

<h3>ENVIRONMENT</h3>
MySQL 5.1 or newer. Percona Server yields a different schema.

<h3>SEE ALSO</h3>
<a href="processlist_per_userhost.html">processlist_per_userhost</a>,
<a href="processlist_summary.html">processlist_summary</a>,
<a href="processlist_top.html">processlist_top</a>,
<a href="slave_status.html">slave_status</a>
<h3>AUTHOR</h3>
Shlomi Noach
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